Type of Document Master's Thesis Author Sanchez, Maria Cristina Author's Email Address email@example.com URN etd-21098-21163 Title Optical Analysis of a Linear-Array Thermal Radiation Detector for Geostationary Earth Radiation Budget Applications Degree Master of Science Department Mechanical Engineering Advisory Committee
Advisor Name Title Mahan, James Robert Committee Chair Scott, Elaine P. Committee Member Thomas, James R. Jr. Committee Member Keywords
- optical cross-talk
- Linear-array thermal radiation detector
- Monte-Carlo ray-trace method
- cavity effect
Date of Defense 1998-03-06 Availability unrestricted AbstractThe Thermal Radiation Group, a laboratory in the
Department of Mechanical Engineering at Virginia Polytechnic
Institute and State University, is currently working to
develop a new technology for thermal radiation detectors.
The Group is also studying the viability of replacing
current Earth Radiation Budget radiometers with this new
concept. This next-generation detector consists of a
thermopile linear array thermal radiation detector.
The principal objective of this research is to develop
an optical model for the detector and its cavity.
The model based on the Monte-Carlo ray-trace (MCRT) method,
permits parametric studies to optimize the design of the
detector cavity and the specification of surface optical
properties. The model is realized as a FORTRAN program
which permits the calculation of quantities related to
the cross-talk among pixels of the detector and radiation
exchange among surfaces of the cavity. An important
capability of the tool is that it provides estimates of
the discrete Green's function that permits partial
correction for optical cross-talk among pixels of the array.
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